should the benefits of being able to do mapreduce and REMAP Parallel
Reduction on `crternlogi`: dramatic reduction in instruction count
for Branch-based control flow when faced with complex analysis of
-multiple Vectors.
+multiple Vectors, including XOR-reduction (parity).
Overall the addition of the CR Operations and the CR RM Modes is about
getting instruction count down and increasing the power and flexibility of CR Fields as pressed into service for the purpose of Predicate Masks.